Data Item _diffrn_reflns.pdbx_Rmerge_I_obs
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General 
- Item name
- _diffrn_reflns.pdbx_Rmerge_I_obs
- Category name
- diffrn_reflns
- Attribute name
- pdbx_Rmerge_I_obs
- Required in PDB entries
- no
- Used in current PDB entries
- Yes, in about 1.3 % of entries
Item Description
The R factor for merging the reflections that satisfy the
resolution limits established by _diffrn_reflns.d_resolution_high
and _diffrn_reflns.d_resolution_low and the observation limit
established by _diffrn_reflns.observed_criterion.
Rmerge(I) = [sumi(sumj|Ij - |)] / [sumi(sumj)]
Ij = the intensity of the jth observation of reflection i
= the mean of the amplitudes of all observations of
reflection i
sumi is taken over all reflections
sumj is taken over all observations of each reflection
Data Type 
- Data type code
- float
- Data type detail
- float item types are the subset of numbers that are the floating numbers.
- Primitive data type code
- numb
- Regular expression
- -?(([0-9]+)[.]?|([0-9]*[.][0-9]+))([(][0-9]+[)])?([eE][+-]?[0-9]+)?